private void waveOutProc(IntPtr hwi, int uMsg, int dwInstance, ref WAVEHDR hdr, int dwParam2)
{
switch (uMsg)
{
case WOM_OPEN:
break;
case WOM_DONE:
try
{
this.CheckError(waveOutUnprepareHeader(m_out, ref hdr, Marshal.SizeOf(typeof(WAVEHDR))));
m_pos = hdr.dwUser;
hdr.dwBytesRecorded = 0;
}
catch (AVException e)
{
m_running = false;
if (this.WaveOutError != null)
{
this.WaveOutError(this, e);
}
}
break;
case WOM_CLOSE:
break;
}
}
private void AddBuffer(ref WAVEHDR hdr)
{
hdr.dwBytesRecorded = 0;
hdr.dwFlags = 0;
hdr.lpNext = 0;
hdr.reserved = 0;
CheckError(waveInPrepareHeader(m_in, ref hdr, Marshal.SizeOf(hdr)));
CheckError(waveInAddBuffer(m_in, ref hdr, System.Runtime.InteropServices.Marshal.SizeOf(typeof(WAVEHDR))));
}
public WaveOut(int index, WAVEFORMATEX format, int buffersize, int buffer_count) //波形输出
{
this.m_fmt = format;
this.m_outdex = index;
m_buffersize = buffersize;
m_outcb = new waveProc(this.waveOutProc);
Debug.Assert(buffer_count > 0 && buffer_count < 65535);
this.m_hs = new WAVEHDR[buffer_count];
this.gchs = new GCHandle[buffer_count];
for (int i = 0; i < buffer_count; i++)
{
gchs[i] = GCHandle.Alloc(new byte[buffersize], GCHandleType.Pinned);
WAVEHDR hdr = new WAVEHDR();
hdr.dwBufferLength = buffersize;
hdr.lpData = this.gchs[i].AddrOfPinnedObject();
hdr.dwUser = i;
this.m_hs[i] = hdr;
}
CheckError(waveOutOpen(ref m_out, m_outdex, ref m_fmt, m_outcb, 0, 0x00030000));
}
public WaveOut(int index,WAVEFORMATEX format,int buffersize,int buffer_count)//波形输出
{
this.m_fmt=format;
this.m_outdex=index;
m_buffersize=buffersize;
m_outcb=new waveProc(this.waveOutProc);
Debug.Assert(buffer_count>0 && buffer_count<65535);
this.m_hs=new WAVEHDR[buffer_count];
this.gchs=new GCHandle[buffer_count];
for(int i=0;i<buffer_count;i++)
{
gchs[i]=GCHandle.Alloc(new byte[buffersize],GCHandleType.Pinned);
WAVEHDR hdr=new WAVEHDR();
hdr.dwBufferLength=buffersize;
hdr.lpData=this.gchs[i].AddrOfPinnedObject();
hdr.dwUser=i;
this.m_hs[i]=hdr;
}
CheckError(waveOutOpen(ref m_out,m_outdex,ref m_fmt,m_outcb,0,0x00030000));
}
private void waveInProc(IntPtr hwi, int uMsg, int dwInstance, ref WAVEHDR hdr, int dwParam2)
{
switch (uMsg)
{
case WIM_OPEN:
break;
case WIM_DATA:
try
{
CheckError(waveInUnprepareHeader(m_in, ref hdr, Marshal.SizeOf(typeof(WAVEHDR))));
// AddBuffer(ref hdr);
if (this.m_running)
{
if (this.WaveCaptured != null)
{
this.WaveCaptured(this, hdr);
}
this.AddBuffer(ref hdr);
}
}
catch (AVException e)
{
m_running = false;
if (this.WaveInError != null)
{
this.WaveInError(this, e);
}
}
catch (System.Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message + ":" + ex.StackTrace);
this.m_running = false;
}
break;
case WIM_CLOSE:
break;
}
}
public WaveIn(int index,WAVEFORMATEX format,int buffersize,int buffer_count)
{
this.m_fmt=format;
this.m_index=index;
m_incb=new waveProc(this.waveInProc);
Debug.Assert(buffer_count>0 && buffer_count<65535);
this.m_hs=new WAVEHDR[buffer_count];
this.gchs=new GCHandle[buffer_count];
// this.datas=new IntPtr[buffer_count];
for(int i=0;i<buffer_count;i++)
{
gchs[i]=GCHandle.Alloc(new byte[buffersize],GCHandleType.Pinned);
// this.datas[i]=Marshal.AllocCoTaskMem(buffer_count);
WAVEHDR hdr=new WAVEHDR();
hdr.dwBufferLength=buffersize;
hdr.lpData=this.gchs[i].AddrOfPinnedObject();
hdr.dwUser=i;
this.m_hs[i]=hdr;
}
CheckError(waveInOpen(ref m_in,m_index,ref m_fmt,m_incb,0,0x00030000));
CheckError(waveInStart(m_in));
}
public WaveIn(int index, WAVEFORMATEX format, int buffersize, int buffer_count)
{
this.m_fmt = format;
this.m_index = index;
m_incb = new waveProc(this.waveInProc);
Debug.Assert(buffer_count > 0 && buffer_count < 65535);
this.m_hs = new WAVEHDR[buffer_count];
this.gchs = new GCHandle[buffer_count];
// this.datas=new IntPtr[buffer_count];
for (int i = 0; i < buffer_count; i++)
{
gchs[i] = GCHandle.Alloc(new byte[buffersize], GCHandleType.Pinned);
// this.datas[i]=Marshal.AllocCoTaskMem(buffer_count);
WAVEHDR hdr = new WAVEHDR();
hdr.dwBufferLength = buffersize;
hdr.lpData = this.gchs[i].AddrOfPinnedObject();
hdr.dwUser = i;
this.m_hs[i] = hdr;
}
CheckError(waveInOpen(ref m_in, m_index, ref m_fmt, m_incb, 0, 0x00030000));
CheckError(waveInStart(m_in));
}
private void AddBuffer(ref WAVEHDR hdr)
{
hdr.dwBytesRecorded=0;
hdr.dwFlags=0;
hdr.lpNext=0;
hdr.reserved=0;
CheckError(waveInPrepareHeader(m_in,ref hdr,Marshal.SizeOf(hdr)));
CheckError(waveInAddBuffer(m_in,ref hdr,System.Runtime.InteropServices.Marshal.SizeOf(typeof(WAVEHDR))));
}
private extern static int waveOutWrite(IntPtr hwo,ref WAVEHDR pwh,int cbwh);
private extern static int waveOutUnprepareHeader(IntPtr hwo,ref WAVEHDR pwh,int cbwh);
private void waveOutProc(IntPtr hwi,int uMsg,int dwInstance,ref WAVEHDR hdr,int dwParam2)
{
switch(uMsg)
{
case WOM_OPEN:
break;
case WOM_DONE:
try
{
this.CheckError(waveOutUnprepareHeader(m_out,ref hdr,Marshal.SizeOf(typeof(WAVEHDR))));
m_pos=hdr.dwUser;
hdr.dwBytesRecorded=0;
}
catch(AVException e)
{
m_running=false;
if(this.WaveOutError!=null)this.WaveOutError(this,e);
}
break;
case WOM_CLOSE:
break;
}
}
private void waveInProc(IntPtr hwi,int uMsg,int dwInstance,ref WAVEHDR hdr,int dwParam2)
{
switch(uMsg)
{
case WIM_OPEN:
break;
case WIM_DATA:
try
{
CheckError(waveInUnprepareHeader(m_in,ref hdr,Marshal.SizeOf(typeof(WAVEHDR))));
// AddBuffer(ref hdr);
if(this.m_running)
{
if(this.WaveCaptured!=null)this.WaveCaptured(this,hdr);
this.AddBuffer(ref hdr);
}
}
catch(AVException e)
{
m_running=false;
if(this.WaveInError!=null)this.WaveInError(this,e);
}
catch(System.Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.Message+":"+ex.StackTrace);
this.m_running=false;
}
break;
case WIM_CLOSE:
break;
}
}
private extern static int waveInAddBuffer( IntPtr hwi,ref WAVEHDR pwh, int cbwh);
private extern static int waveInPrepareHeader( IntPtr hwi,ref WAVEHDR pwh, int cbwh);
private extern static int waveInPrepareHeader(IntPtr hwi, ref WAVEHDR pwh, int cbwh);
private extern static int waveOutWrite(IntPtr hwo, ref WAVEHDR pwh, int cbwh);
private extern static int waveOutUnprepareHeader(IntPtr hwo, ref WAVEHDR pwh, int cbwh);
private extern static int waveInAddBuffer(IntPtr hwi, ref WAVEHDR pwh, int cbwh);
